Twenty pairs of gladiators belonging to Decimus Lucretius Satrius
Valens perpetual flamen of Nero Caesar son of Augustus and ten pairs of
gladiators belonging to the son of Decimus Lucretius Valens will fight
at Pompeii on April 8,9,10, 11 and 12, there will be a beast hunt and
there will be awnings. Aemilius Celer wrote this on his own by
moonlight. (from LVDVS GLADIATORVS)

And like at modern sports events, gladiator related articles were sold.

Twenty pairs of gladiators belonging to Decimus Lucretius Satrius
Valens perpetual flamen of Nero Caesar son of Augustus and ten pairs of
gladiators belonging to the son of Decimus Lucretius Valens will fight
at Pompeii on April 8,9,10, 11 and 12, there will be a beast hunt and
there will be awnings. Aemilius Celer wrote this on his own by
moonlight. (from LVDVS GLADIATORVS)